I want to do a 30 day fast

I've done a few Water Fasts before. My longest water-only fast was 16 days. I stayed in bed the whole time.

I would like to do a 30-day water-only unsupervised fast (or longer to completion) and was wondering if I can still work while fasting and if that would be safe.

Also, I have read that one should "recover" from a fast the same length of the fast and was wondering when I can resume exercise such as running (should it be a month if my fast is 30 days?)

How does one prevent overeating in breaking the fast?

Aslo, should I shower instead of bathe since when I have taken baths before while fasting I noticed weird "blood pressure" feelings in my arms...